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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10295081 B1

PDFFull Text
Date of Patent:
May. 21, 2019

Filed:

Jun. 28, 2017

Valve body having primary and secondary stem guides

Applicant:

Emerson Process Management Regulator Technologies, Inc., McKinney, TX (US);

Inventors:

Feifei Ji, Shanghai, CN;

Li Li, Shanghai, CN;

Jing Chen, Shanghai, CN;

Assignee:

EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC., McKinney, TX (US);

Attorney:

Marshall, Gerstein & Borun LLP

Primary Examiner:

Atif H Chaudry

Int. Cl.
CPC ...
F16K 39/02 (2006.01); F16K 27/07 (2006.01); F16K 17/04 (2006.01); F16K 31/122 (2006.01); F16K 17/30 (2006.01); F16K 27/02 (2006.01); B65D 88/54 (2006.01); G05D 16/10 (2006.01); F16K 31/524 (2006.01); F16K 1/30 (2006.01);
U.S. Cl.
CPC ...
F16K 39/024 (2013.01); B65D 88/54 (2013.01); F16K 1/30 (2013.01); F16K 17/04 (2013.01); F16K 17/30 (2013.01); F16K 27/02 (2013.01); F16K 27/0209 (2013.01); F16K 27/07 (2013.01); F16K 31/1221 (2013.01); F16K 31/52408 (2013.01); G05D 16/103 (2013.01); Y10T 137/7727 (2015.04); Y10T 137/8085 (2015.04); Y10T 137/86348 (2015.04); Y10T 137/86944 (2015.04); Y10T 137/86984 (2015.04);
Abstract

An internal valve includes a valve stem disposed in a valve body, a poppet valve coupled to the stem, and a bleed valve coupled to the stem. The valve stem is shiftable from a first position in which the poppet valve and the bleed valve are closed, to a second position in which the bleed valve is open, and a third position in which the bleed valve is closed and the poppet valve is open, and the poppet may shift closed in response to a pressure change. A valve body of the internal valve includes primary and secondary stem guides supported by respective primary and secondary stem struts connected to an inner side of the valve body. The valve body further includes thickened portions extending inwardly toward an axis of the valve body to which the secondary stem struts connect.

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